About the Authors
Department of Microbiology and Hygiene, Campus Benjamin Franklin, Charité University Medicine, Berlin, Germany
Department of Community Health, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
Post-Graduation Program in Medical Sciences, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
The authors have declared that no competing interests exist.
Conceived and designed the experiments: JH HF. Performed the experiments: JB LA MS. Analyzed the data: JB LA MS HF. Contributed reagents/materials/analysis tools: JB JH LA JDK HF. Wrote the paper: JB HF.